* {
				margin: 0;
				padding: 0;
			}
			
			body {
				font-size: 14px;
			}
			
			.div {
				width: 550px;
				border: 1px solid #DCDCDC;
				margin: 0 auto;
				overflow: hidden;
			}
			
			.exp {
				width: 550px;
				height: 200px;
				float: left;
				line-height: 25px;
				overflow: hidden;
			}
			
			.fold {
				width: 550px;
				float: left;
				line-height: 25px;
			}
			
			.div_a {
				float: right;
			}
			
			#aC {
				color: #0087F1;
				font-size: 20px;
				text-decoration: none;
			}